# TRW ScanAR vs Let's Smile 2

The clearest difference is update cadence: TRW ScanAR at every 5 months against Let's Smile 2's every 19 months. Let's Smile 2's advantage is iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TRW ScanAR ships an update every 5 months, Let's Smile 2 every 19 months. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | TRW ScanAR | Let's Smile 2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 19 months |
| Size | 153 MB | 892 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eric Kane](https://appshunter.io/developer/1450483650) | [e-future Co., Ltd.](https://appshunter.io/developer/522346678) |

## What reviewers say

### TRW ScanAR

[App page](https://appshunter.io/ios/app/trw-scanar/id1450483651)

**Features:** macOS Compatibility

**In-app purchases:** none


### Let's Smile 2

[App page](https://appshunter.io/ios/app/lets-smile-2/id1566810866)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TRW ScanAR free?

TRW ScanAR is free to download, with no in-app purchases.

### Is Let's Smile 2 free?

Let's Smile 2 is free to download, with no in-app purchases.

### Do TRW ScanAR or Let's Smile 2 have ads?

Neither TRW ScanAR nor Let's Smile 2 shows ads.

### Which is updated more often, TRW ScanAR or Let's Smile 2?

TRW ScanAR ships an update every 5 months, and Let's Smile 2 every 19 months. Most recently, TRW ScanAR was updated on October 26, 2026 and Let's Smile 2 on October 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*